Physical<span> changes involve a new </span>form<span> or shape of matter,
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Chemical change<span> is any </span>change<span> that results in the formation of new </span>chemical<span> substances.</span>
ATP synthesis in human cells and energy metabolism.
Essential amino acids
Amino acids are the molecules that make up proteins when they are linked up. There are certain essential amino acids, namely they are <span>histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
All of these must be obtained from one's diet. If they are not, the body will use existing proteins, such as muscle mass, to obtain them.</span>
Dccccccccccccccccccccccsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
NF3– 0.94– third
NCl3–0.12– second
NBr3–0.08– first
CF4–1.43– fourth
NBr3—NCl3—NF3—CF4
Lowest. Highest
